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NFI4b
basal area
diameter classes · main tree species
unit of reference: protection forest region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
diameter classesmain tree species m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
12-15 cmspruce0.390.590.4120.6130.8100.2170.45
fir0.290.2120.2170.0360.0640.0340.26
pine0.0580.0590.01000.2320.1300.01000.019
larch0.0800.0520.0800.1200.0240.1280.016
stone pine......0.0400.0380.01000.027
other conifers0.0290.0710.0620.0610.042..0.021
beech0.360.2130.3160.1340.0370.3160.25
maple0.1120.1190.1250.1280.0400.0340.19
ash0.1140.1250.1260.0360.0470.1260.110
oak0.0400.0690.0710.140..0.1320.022
chestnut0.0100........0.3210.021
other broadleaves0.1110.1150.2190.3170.2250.6150.27
total1.241.351.281.581.381.871.33
16-23 cmspruce0.991.481.6111.5132.090.6171.24
fir0.590.6110.4170.1280.1370.1340.46
pine0.0370.0710.0600.7240.3270.01000.116
larch0.0430.0450.0640.5160.2260.3220.111
stone pine......0.2260.2280.01000.019
other conifers0.0250.01000.0420.0640.041..0.018
beech0.860.7120.8130.2320.1341.1160.75
maple0.3120.3150.3180.1300.0400.1360.28
ash0.2130.1200.3190.1420.1500.2320.29
oak0.1230.0520.01000.1430.01000.2340.117
chestnut......0.0...1.1170.117
other broadleaves0.2110.2180.3200.6180.5281.2130.47
total3.143.453.764.273.574.863.62
24-35 cmspruce1.883.883.7103.0114.381.5162.74
fir0.991.2120.8170.2340.1460.2390.76
pine0.2210.1720.1510.9220.6250.1680.313
larch0.1360.0520.01001.3150.6190.9180.310
stone pine......0.3330.523..0.119
other conifers0.0320.01000.01000.0.0.0100..0.029
beech2.061.4111.7130.4300.3301.5151.55
maple0.5100.6150.9160.1390.1350.1410.47
ash0.4120.4250.7180.3640.1610.2380.410
oak0.3160.0560.01000.1530.01000.3270.213
chestnut......0.01000.01001.5170.217
other broadleaves0.3130.2290.4220.3280.2361.4130.48
total6.637.858.267.076.767.857.22
36-51 cmspruce2.966.466.284.4107.172.6134.53
fir1.871.891.8130.4340.2290.3281.35
pine0.5120.2550.1380.7240.7210.1500.410
larch0.1270.0550.0462.5141.5141.3150.68
stone pine..0.0100..0.3330.421..0.118
other conifers0.138........0.01000.037
beech3.351.8122.7110.2490.5311.2162.14
maple0.4100.4180.7140.1570.1560.0470.37
ash0.7120.2220.7190.1670.0500.1400.49
oak0.4130.0440.0630.0720.0730.2330.211
chestnut0.01000.0100..0.0710.01001.1180.118
other broadleaves0.3160.1280.2350.2370.1340.7160.310
total10.4311.0412.558.9610.657.7610.32
>= 52 cmspruce3.277.379.094.3146.393.6145.04
fir2.382.9102.3140.4370.5290.6281.85
pine0.3170.1560.1590.2490.5250.01000.213
larch0.1280.1530.2454.2132.4151.7170.98
stone pine......0.4370.429..0.123
other conifers0.1420.0100......0.01000.139
beech2.271.3161.7150.2470.3411.0181.46
maple0.1220.1340.332..0.1610.01000.115
ash0.5150.1410.3330.01000.01000.01000.313
oak0.420..0.1610.01000.1790.1600.218
chestnut......0.1750.01001.9280.227
other broadleaves0.2330.1610.1500.1580.0710.1390.122
total9.4412.0513.969.9810.669.0810.52
totalspruce9.1419.4520.8613.7820.558.61113.92
fir5.856.775.4101.2260.8231.2254.44
pine1.1100.4460.3402.6172.3160.2541.08
larch0.2180.2310.3348.6104.7114.4121.96
stone pine..0.0100..1.2231.6190.01000.315
other conifers0.3240.0680.1410.0550.1390.01000.221
beech8.645.397.191.2271.2255.1126.03
maple1.471.6112.2110.4270.3280.3291.25
ash1.980.9182.0140.5430.3450.6291.36
oak1.2110.1340.1450.3380.1710.9200.79
chestnut0.0800.0100..0.1540.01005.9130.713
other broadleaves1.290.8181.2161.4161.0244.0101.46
total30.8235.6339.5331.4432.8331.1332.91
© WSL, Swiss National Forest Inventory, 29.12.2015 #204454/190717
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